def jia(x, y):
    jia_res = print(x + y)
    return  jia_res

def jian(x, y):
    jian_res = print(x - y)
    return jian_res

def cheng(x, y):
    cheng_res = print(x * y)
    return cheng_res

def chu(x, y):
    chu_res = print(x / y)
    return chu_res

def zc(x, y):
    zc_res = print(x // y)
    return zc_res

def qy(x, y):
    qy_res = print(x % y)
    return qy_res

def kf(x):
    kf_res = print(x ** (1 / 2))
    return  kf_res

result = jia(1, 2)
result = jian(1, 2)
result = cheng(1,2)
result = chu(1,2)
result = zc(1,2)
result = qy(1,2)
result = kf(2)

print(result)
